.course{
	margin-top: 10px;
    width: 100%;
    background: #e8e8e8;
    color: #333;
    
}
.courseright {
	width: 780px;
    margin: 0 auto;
	background: #fff;
	border-radius: 3px;
	padding-top: 10px;
	/* padding-left: 20px;
	padding-right: 20px; */
	box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
	min-height: calc(100vh - 148px);
	
}

.courseulr {
	width: 780px;
	min-height: 100px;
	overflow: hidden;
}

.courseulr li {
	width: 260px;
	float: left;
	margin-bottom: 20px;
}

.courselist {
	width: 240px;
	background: #fff;
	margin: 0 auto;
	padding-bottom: 10px;
	box-shadow: 0 1px 2px #c5c5c5;
	border-radius: 3px;
	border: 1px solid #E8E8E8
}

.courTit {
	text-align: center;
	margin-top: 10px;
	height: 50px;
}

.courTit a:link,.courTit a:visited {
	color: #333;
}

.courTit a:hover {
	color: #fb5e55;
}

.gray {
	font-size: 14px;
	color: #999;
	margin-top: 10px;
	margin-bottom: 10px;
	overflow: hidden;
}

.gray span {
	font-style: normal;
	float: left;
	margin-left: 5px;
}

.gray span.sp1 {
	float: right;
	margin-left: 0;
	margin-right: 5px;
}

.do {
  
    padding: 0 20px;
    overflow: hidden;
}

.do .add_course {
    background: #3eb0e0;
    color: #fff;
    padding: 3px 10px;
    font-weight: bold;
    border-radius: 3px;
    margin-left: 40px;
    float: right;
 
}
.do .del_course {
    background: #999;
    color: #fff;
    padding: 3px 10px;
    font-weight: bold;
    border-radius: 3px;
    margin-left: 40px;
    float: right;
    
}

.courselist {
	cursor: pointer;
	overflow: hidden
}

.big {
	width: 320px;
}

.courselist img {
	-webkit-transition: .3s;
	-moz-transition: .3s;
	width: 240px;
	height: 135px
}

.courselist img:hover {
	-moz-transform: scale(1.1);
	-webkit-transform: scale(1.1);
	-o-transform: scale(1.1);
}
.none{
	display: none;
}